Preparation method of barium strontium titanate based glass ceramic energy storage material

A technology of glass ceramics and barium strontium titanate, which is applied in glass production, components of fixed capacitors, and dielectrics of fixed capacitors, etc., and can solve problems such as increased connection loss
CN102775069BInactive Publication Date: 2015-02-18TONGJI UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
TONGJI UNIV
Publication Date
2015-02-18
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention belongs to the field of dielectric energy storage material, and specifically relates to a preparation method of barium strontium titanate based glass ceramic material with high energy storage density. The invention provides the preparation method of barium strontium titanate based glass ceramic energy storage material, which comprises the following steps: burdening according to (BaxSr1-x) TiO3-aAl2O3-bSiO2, wherein x=0.4-0.6, (a+b) / (2+a+b)=0.3-0.35 and a / b=0.5-1.0, drying after ball-milling and mixing materials, and melting at high temperature; casting high-temperature melt into a metal mold, performing stress relief annealing, and then cutting to obtain glass thin sheet with thickness of 0.5-1.0mm; performing controlled devitrification to the glass thin sheet to obtain glass ceramic; performing microwave heat treatment to the glass ceramic in a microwave oven to obtain the glass ceramic dielectric with high energy storage density. The method provided by the invention is simple and the energy storage property of the prepared glass ceramic material is improved greatly.
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Description

technical field

[0001] The invention belongs to the field of dielectric energy storage materials, and in particular relates to a method for preparing strontium barium titanate-based glass ceramic materials with high energy storage density by microwave heat treatment. Background technique

[0002] High energy storage density, high withstand voltage ceramic capacitors are one of the common electronic components in electronic equipment, and are widely used in laser, radar, mobile communication, aerospace and other fields. In order to meet the requirements of miniaturization and high energy storage density of pulsed power systems, material workers from various countries are actively exploring and researching dielectric materials with high dielectric constant, low connection loss and high compressive strength, strontium barium titanate-based glass ceramics Materials have attracted extensive attention in this field in recent years due to their excellent dielectric properties. Gla...

Claims

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